Tips for handling the problem that the path cannot be found after Python downloads the file

Tips for dealing with the problem of not finding the path after downloading a file in Python include: using the tempfile module to create a temporary file, specifying the file path and accessing the temporary file; using the shutil module and the NamedTemporaryFile class to create a temporary file, and moving the temporary file to the required path , access the moved files.

Python: Handling path not found issue after downloading a file

When downloading a file in Python, sometimes you encounter a file The path cannot be found after downloading. This is usually because the file was downloaded to a temporary directory and then deleted. Here are some processing tips:

Using tempfile Module

tempfile The module provides functions for creating and using temporary files . Using this module, you can specify the path to a file without worrying about it being deleted:

import tempfile

# 创建一个临时文件
with tempfile.NamedTemporaryFile() as temp_file:
    # 下载文件
    urllib.request.urlretrieve('https://example.com/file.txt', temp_file.name)

# 访问临时文件
with open(temp_file.name, 'r') as temp_file:
    file_contents = temp_file.read()

Using shutil and NamedTemporaryFile

The

shutil module provides advanced file operation functions, while the NamedTemporaryFile class provides methods for creating and using temporary files:

import shutil
from tempfile import NamedTemporaryFile

# 创建一个临时文件
with NamedTemporaryFile() as temp_file:
    # 下载文件
    urllib.request.urlretrieve('https://example.com/file.txt', temp_file.name)

# 移动临时文件
shutil.move(temp_file.name, '/path/to/file.txt')

# 访问已移动的文件
with open('/path/to/file.txt', 'r') as file:
    file_contents = file.read()

Practical case

The following is an example of using the tempfile module to download a file:

import tempfile

# 下载文件
with tempfile.NamedTemporaryFile() as temp_file:
    urllib.request.urlretrieve('https://website.com/file.pdf', temp_file.name)

# 保存文件到磁盘
with open('downloaded_file.pdf', 'wb') as f:
    f.write(temp_file.read())

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